Filing-machine.



W, D. REARWIN.

FILING MACHINE.

APPLICATION FILED ocr. l. 1915.

Patented J une 19, 1917.

2 SHEETSSHEET I.

W. D. REARWIN.

FILING MACHINE.

APPLICATION FILED OCT. I, 1915.

2 SHEETS-SHEET 2- Smumtoz -/5 \97 Q WI'Ibcr HRearvvin WILBER. D. REARWIN, OF GRAND RAPIDS, MICHIGAN.

FILING-MACHINE.

Specification of Letters Patent. Patented June 19, 1917.

Application filed October 1, 1915. Serial No, 53,650.

To all whom it may concern:

Be it known that I, WILBER D. REARWIN, acitizen of the United States, residing at Grand Rapids in the county of Kent and State of Michigan, have invented certain new and useful Improvements in Filing- Machines, of which the following is a speci fication. g

My invention relates to improvements in machines for filing and finishing dies for use in punch presses for cutting out and forming metal blanks, and similar articles, and its objects are':' First, to provide a means for causing the file to advance toward the Work upon its downward stroke, and recede from the work upon its upward stroke. Second, to provide a means whereby the tables may be made to assume any desired incline from the level, and in any direction.

Third, to provide a means whereby the advancing and receding movement of the file may be readily avoided. Fourth, to provide a means whereby the material being worked upon may be kept clear of filing dust.

I attain these objects bythe mechanism illustrated in the accompanying drawing, in which: Figure l is a vertical section of the upper part of the machine on the line y y of Fig. 6. Fig. 2 is a vertical section of the carriage support on the line a z'of Fig. 6. Fig. 3 is a front elevation of the same with the carriage and carriage ways removed to disclose the construction of the actuating slide. Fig. 4 is a front elevation of the carriageways and their supporting bar. Fig.

5 is a sectional plan of the carriage support.

and the carriage ways and their supporting bar on the line a; w of Fig. 1. Fig. 6 is a front elevation of the upper part of the macrank with the carriage. Fig. 7 is a side elevation of the upper part of the machine with' the upper file supporting arm partly in section to show the manner of actuating the adjustable jaw for retaining or releasing the shank of a file. Fig. 8 is a frontelevation of the carriage way and its supportchine showing the manner of connecting the the upper end of the base 1 and the carriage I supporting arm 2 as necessary elements in the construction and application of my inventlon.

The arm 2 is securely connected'with the base 1 by means of the bolts passing through holes in the lugs 59 and screwed 1nto the back of the base 1. The shaft 3 is revolubly mounted in the base 1 and carries the driven cone pulleys 4, the eccentric 5' and the crank wheel 7 The pitman 8 is made in two parts, 8 and 8. The lower end of the pitman is revolubly connected with the crank pin 7 and the upper end is oscillatingly secured to the bearing 35 on the arm 34 so that when the crank wheel 7 revolves the arm 34 and the carriage 21 are made to reciprocate vertically in the carriage Ways 11.

. The carriage way support 11 is supported 1n the upper part of the machine, or the supporting arm 2 by means of pins 15 that are firmly anchored in the arm 2 and project forward far enough to pass through the back of the carriage way support 11 through the holes 67 so that the carriage way support is held firmly against longitudinal, or lateral movement, but may be moved forward and backward a short distance. I secure two face plates, 20, to the face of the carriage support and thus form slots or slide ways 22 the entire length of the support for the reception and free longitudinal move ment of the carriage bearings 24 on the carriage 21. This support is held in place in the supporting arm 2 by. means of two bolts 13 13 that screw into the holes 66 and are made to draw the support 11 firmly back toward the surface of the arm 2 by means of springs 14 that are closed in the housing 68 and press against the back of the arm and the heads of the bolts so that normally the support 11 would be drawn firmly against the front surface of the arm 2.

, When operating the machine it is sometimes very desirable to have the file 40 approach the work on its downward stroke, and recede from the work on its upward stroke. To accomplish this I place an actuating slide 10 between the surface of the arm 2 and the back of the support or carriage guideway 11, which slide is provided with slots 16 and 17 for the pins 15 and the screws 13 to pass through and allow the slide to be given a slight longitudinal movement. I also place -a short, or narrow inclinenear each end of this slide at the front side, as

shown at 18, that stands, normally, just below corresponding inclines 19 19 on the back surface of the support 11, so that a slight movement of the slide upward will force the inclines 18 back of the inclines 19 and the support 11 forward the thickness of the inclines, and when the slide is drawn clownward again the inclines are drawn apart and the support 11 is drawn back to normal position by the springs 14, 14, as hereinbefore described.

I force the slide 10 upward and the inclines 18 back of the inclines 19 by means of the eccentric 5, on the crank shaft 3, acting upon the idler 6, that is revolubly mounted on the lower end of the slide 10, in such a manner that when the file carriage 21 has reached its extreme upper point of travel, and has started upon its downward stroke the eccentric will begin to raise the slide 10, and continue to raise it until the carriage has reached the extreme downward pointof travel and has commenced its upward stroke when the short side of the eccentric will approach the idler and the slide will be drawn downward by the spring 12, which is attached at one end to the hook at on the slide, and at the other end to the hook b on the arm 2, will draw the slide downward and the inclines 18 from behind the inclines 19 and the springs 13 will draw the supports 11 back to normal position, by which means the file is made to advance toward the work on its downward stroke, and to recede from its work on its upward stroke.

The arm 34 is made integral with the lower end of the carriage, and to mount the upper arm, 26, in the carriage I pass the T formed end 28 of the arm into the T shaped groove,23-25 and force the wedge shaped block 27 downward with the screw 29 until the wedge bears heavily against the front edges of the carriage and clamps the arm firmly in place in the carriage.

After the arm has been properly attached to the carriage the bearings 24 of the car riage are inserted in the grooves '22 in the support, in which they may be made to slide freely by the action of the crank 7 through the action of the ,pitman or con- I nec'ting rod 8.

To secure the file 40 to the :arms '26 and 34 it is passed down through an opening in the table 43 and the shank or handle end of the file is then passed between the jaws 30 and 31, and the other end is placed between the bearings 36 and 37. The upper end or shank of the file is then firmly clamped be tween the jaws 30 and 31 by forcing the screw 33 downward against the long end of the 31, (which jaw is pivotally supported in the arm 26 at 32) and the short end of this jaw is forced firmly against the shank of the file. The file is then properly against lateral motion that might otherwise be induced by the action of the pitman 8 as it is converting the rotary motion of the crank 7 to a reciprocating motion at the carriage. In this connection I will say that the stroke of the carriage may readily be adjusted for a long, or a short stroke by varying the distance of the crank pin 7 from the center of the crank wheel, in the slot 72, and I have provided for adjusting the length of the pitman by telescoping the part 8 into thepart 8 and securing it firmly in place by means of the clamping screw 9.

The plain surface 51, shown in Fig.1, indicates an opening in the front of the base 1 for the free passage of the arm 34. .52 represents a door that is hinged to the base 1, as at 71, designed to close an opening 7 O in the side of the frame or base 1 by means of which access'may be readily gained to the crank and its connections. 61 is an adjustable index arm that is pivotally connected with the 2, as at 63, and 62 is an in.- dex finger for alining the file, and for placing the object being filed. 64 represents an arm for supporting an electric light or other desired implement or tool.

'At 53 I have shown a pump that is designed to force a strong jet or current of air upon the surface of the object being filed for the purpose of clearing it of file dust, &c. The discharge tube '65 is mounted over the neck of the air pump 53 so it may be made to turn easily thereon, and thus may be adjusted to desired points upon the work. This pump is operated from the arm 34 by securing one end of the pump rod 56 to the lug or arm 41, and the other end of this rod is securely connected with the piston rod 54, as at 0, so that with the piston rod steadied in the bearing 55 it and its pis ton will be given the necessary vertical reci-procatin-"g movement as the carriage is made to reciprocate by the crank 7 It is sometimes desirable :to have the file 40 reciprocate directly up and down without any forward and backward movement. To accomplish this I anchor a strong pin 58 into the upper end of-the slide 10, in position so it may pass through the supporting arm 2 and project some distance back of it. I then ,pivo'tally connect an eccentric to the back surface of the arm 2 immediately below the pin, as indicated at 57 in Fig. 2. With this eccentric in the position shown in Fig. 2, as represented by its solid lines, the slide 10 is free to reciprocate as hereinbefore described, but with the eccentric turned to the position indicated by its dotted lines its broad surface will engage the pin 58 and hold the slide up against the tension of the spring 12 and the eccentric 5 will not have any effect upon the slide, hence the inclines 18 will be supported back of the inclines 19 and the movement of the file carriage 21 and the file 40 will be direct with no forward or backward movement whatever.

The table yoke 42 is pivotally secured to the sides of the frame or base 1, as at 44, so it may be readily tilted upward or downward, as indicated by its dotted lines in Fig. 7 and may be held in the desired position by means of any available form of clamp, as indicated at 45 in Fig. 7 The table 43 is pivotally secured to the front and back ends of the yoke 42, as indicated at 47 see Figs. 6 and 7 I have provided for tilting this table sidewise by supporting its side edges with set, or adjusting screws 46 supported in the lugs 69 at each side of the yoke 42. By properly manipulating the screws 46, that is by screwing one of them upward and the other one downward the table may be tilted to the desired positions, and by tilting the yoke, say forward, and the table, say

to the right or to the left, a diagonal tilting of the table may be readily attained.

I do not desire to restrict myself to the exact line of mechanism hereinbefore set forth for actuating the carriage and carriage support except as required by the scope of the claims as there are several other lines of mechanism that may be adopted with equally good results, the mechanism described and shown being designed to simply illustrate how the desired results may be attained in a simple and efficient manner, whether by the means stated or by any other available means within the scope of the claims.

What I claim as new, and desire to secure by Letters Patent of the United States, is:

1. In combination with a filing machine having a vertically reciprocating file carriage, a slide having means connected therewith to cause the file carriage to advance on its downward stroke, and to recede on its upward stroke, substantially as, and for the purpose set forth.

2. In a filing machine, a vertically reciprocating file carriage, a supporting arm having pins projecting outward from its front surface, a carriage support mounted on said pins, inclines on the back surface of said support, a slide mounted between the car- Copies of this patent may be obtained for five cents each, by addressing the arm, inclines on the carriage support and on the slide, bolts and springs for holding the carriage support firmly against the slide, a

crank shaft on the machine, an eccentric on said shaft, an idler on the slide inposition to be acted upon by the eccentric to cause the slide to reciprocate vertically causing the inclines to engage each other to force the carriage support forward, and to draw from each other to allow the carriage support to be drawn backward.

4. In combination with a filing machine, a vertically reciprocating carriage, a carriage support, an arm having pins extended through the support, a slide between the support and the arm, inclines on the back surface of the support, inclines on the front surface of the slide in position to be made to engage the inclines on the support, spring actuated bolts passing through the arm and into the support to draw the support firmly against the slide, means for actuating the slide to give the support a forward and backward movement, and means for locking the slide in position to prevent it from actuating the support forward and backward.

5. In combination with a filing machine, a vertically reciprocating carriage, means for forcing said carriage forward on the downward stroke, means for forcing the carriage backward on the upward stroke, means for preventing said forward and backward movements of the carriage, a table attached to the machine at right angles with the carriage and having an opening through it for the passage of a file, and means for adjusting said table to an incline from the horizontal in any desired direction.

6. In combination with the vertically reciprocating carriage of a filing machine, an upper, and a lower supporting arm extending forward from the carriage, a guide in the machine to one side of the carriage, a connecting bar between the lower arm and the guide to prevent lateral movement at the outer end of the said lower arm.

WILBER D. REARWIN.

Commissioner of Patents,

Washington, D. 0. 

